| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [v-ing] [art] | 500 |
|
| 2 | been [v-ing] [art] [noun pl] | 211 |
|
| 3 | has been [v-ing] [noun pl] | 153 |
|
| 4 | has been [art] [noun pl] | 31 |
|
